One of the films Feilaulau, or "Sacrifice", revolves around the story of two young second-generation Tongan men, working as cleaners, who joke about changing their names to be understood by New Zealand society and explores the struggle of migration and the underclass.

Mr Tu'itahi hopes the subtitled films will connect to a wide audience, not just New Zealanders of Tongan descent.

"I think the story could be relative to a lot of cultures who are here in New Zealand, just immigrants in general who have travelled to other countries and have gone through a bit of sacrifice, a bit of struggle to get to where they are today," he said.

Tongan Language week runs from September 1 - 8. It is New Zealand's third pacific language week, following Samoan and Cook Islands weeks earlier this year.